JPH0583022B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a local area network formed within a local area [known by names such as Omnit, Ethernet, and Token Ring] (hereinafter referred to as LAN).
The present invention relates to a LAN terminal accommodating/connecting method in which a LAN terminal (for example, a personal computer or a workstation) connected to a telephone and a telephone are accommodated in an electronic exchange as a set of terminal devices.

[Conventional technology]

This type of conventional LAN terminal accommodation connection method is
A LAN terminal has two input/output paths: a LAN connection and an electronic exchange connection.

FIG. 5 is a block diagram showing a conventional example.
In FIG. 5, the terminal device 90 has a digital telephone 31, a LAN terminal 93, and a data terminal adapter 94, and the LAN terminal 93 has an EX connection section 931 and a LAN connection section 932, respectively. LAN
The EX connection part 931 of the terminal 93 connects to the electronic exchange 91 via the data terminal adapter 94, and connects to the LAN.
It becomes one terminal of the LAN 92 via the connection section 932.
Data terminal adapter 94 condenses information from LAN terminal 93 and voice and control information from digital telephone 31 and connects to electronic exchange 91 . Digital telephone 31 often has a built-in data terminal adapter 94.

While the code transmission speed of LAN has become even faster to 1Mbps or 10Mbps, the code transmission speed handled by the telephone line of the electronic exchange 91 is slow at 128 to 256Kbps even if voice, data, and control information are multiplexed. be. Furthermore, as far as the signal speed of information communication between the LAN terminal and the electronic exchange 91 is concerned, it is generally about 64 Kbp at most.

[Problem that the invention seeks to solve]

As mentioned above, the conventional LAN terminal accommodation connection method is
The LAN terminal that constitutes the terminal device has a connection part that connects to both the LAN and the electronic exchange, and
Since it has a data terminal adapter that concentrates lines between terminals and telephones and connects them to the telephone line, each terminal device has a data terminal adapter that concentrates lines between telephones and LAN terminals, and each LAN terminal can be connected to and controlled by an electronic exchange. There was a problem in that the connection part worsened economic efficiency, and the data transfer speed through the electronic exchange was slow, which worsened the efficiency of using LAN terminals.

An object of the present invention is to connect a LAN terminal only to the LAN, and have an electronic exchange having one LAN connection circuit for each LAN, and to treat this LAN connection circuit as one of the line circuits to exchange telephone information with the LAN terminal. A LAN that solves the above problems by
The purpose of the present invention is to provide a terminal accommodating connection method.

[Means for solving problems]

The present invention provides a LAN terminal accommodating connection system in which a LAN terminal and a telephone connected to each of a plurality of local area networks (LAN) formed within a local area are accommodated in an electronic exchange as a set of terminal devices, wherein the electronic exchange a line circuit connected to each of the telephones;
a LAN connection circuit that is connected and accommodated as one terminal for each of the LANs connected to the LAN terminal;
It has a central processing unit connected to the LAN connection circuit and the line circuit to exchange predetermined telephone information with the LAN terminal and execute information processing by making full use of programs and data stored in a main storage device. .

〔Example〕

Next, the LAN terminal accommodation and connection system of the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention. In FIG. 1, an electronic exchange 10 includes a line circuit 11, a LAN connection circuit 12, a main storage device 13,
and a central processing unit 14, the terminal device 20 has a telephone 21 and a LAN terminal 22, and
The LAN 30 configures a communication network by connecting the LAN terminal 22 and the LAN connection circuit 12 as terminals to the office processor 31.

The line circuit 11 is provided for each telephone line that terminates at the telephone set 21, and the LAN connection circuit 12 is provided for each telephone line that terminates at the telephone set 21.
Deployed every. The main storage device 13 stores programs and data, and the central processing unit 14 sends and receives telephone information to and from the telephone 21 and the LAN terminal 22 via the line circuit 11 and the LAN connection circuit 12, and the information is stored in the main storage device 13. Executes exchange processing using programs and data.

FIG. 2 is a block diagram showing an example of a packet structure transmitted on the LAN of FIG. 1. In Figure 2, the packet information has the conventional structure of a start code, called address, calling address, control information, transmission information, error check code, and end code. The information includes telephone information. According to FIG. 2, the called address includes an EX address, the calling address includes a LAN terminal address, and the telephone information includes a calling telephone number, a called telephone number, and a call connection request as a request item.

FIG. 3 is a functional block diagram showing an example of partial details of the electronic exchange shown in FIG. 1. In Figure 3,
Components that are the same as those shown in FIG. 1 are given the same reference numerals and explanations will be omitted.

In FIG. 3, the LAN connection circuit 12 connects a LAN connection section 121, an information reception identification section 122, an information processing section 123, an exchange connection section 124, and an information formation transmission section 125, and the central processing unit 14 connects a telephone information transmission/reception means 141. , call processing means 142, and telephone control means 143, respectively.

The LAN connection unit 121 is directly connected to the LAN 30 and has connection conditions as one terminal, and receives transmission packets and transfers them to the information reception identification unit 122, and also transmits the packet information received from the information formation and transmission unit 125 to the LAN 30 in a predetermined procedure. Send to. When the information reception identification unit 122 identifies the received packet as an incoming packet from the called address, the received information is transmitted to the information processing unit 1.
23 and transferred to the call processing means 142 via the exchange connection section 124 and the telephone information transmitting/receiving means 141, and the call processing means 142 calls the program and data from the main storage device 13 and processes the received information. The processing result of the call processing means 142 is sent to the telephone 2.
In the case of control 1, the control information is transmitted to the telephone control means 14.
3. It is transmitted to the telephone 21 via the line circuit 11. Further, the call processing means 142 sends information to the LAN terminal to the telephone information transmitting/receiving means 141 and the exchange connecting section 1.
24 and the information processing section 123 to the information forming and transmitting section 125, which forms a transmission packet and transmits it to the LAN 30 via the LAN connecting section 121.

Next, refer to Figure 4 along with Figures 1 to 3.
This section describes the procedure for making a call by specifying telephone information from a LAN terminal, connecting the specified telephones, and calling the other party. FIG. 4 is a flowchart showing an example of the operating procedure of the central processing unit.

From one LAN terminal 22 to another LAN terminal 22
After transmitting data at high speed using the LAN 30, when calling the other party to notify the other party by telephone that the data has been transmitted, the operator must first send the LAN terminal 22 the caller's own telephone number to the calling telephone number, or Register the telephone number of the called party as the called telephone number. When calling the destination phone, the operator specifies the call connection as a request item.
The LAN terminal 22 sends a packet to the LAN that includes the EX address as the called address, its own LAN terminal address as the calling address, and the calling telephone number, called telephone number, and call connection request of the telephone information as the transmission information.
Send to 30.

When the information reception identification unit 122 of the LAN connection circuit 12 intercepts the transmission packet and identifies its own EX address as the called address, the electronic exchange 10 takes in the transmission packet and centrally processes the telephone information contained in the transmission information. Transfer to device 14. The central processing unit 14 receives the telephone information (step S1), and the call processing means 142 responds to the call connection request specified by the caller by performing call processing (step 2) similar to the call originating from the telephone of the calling telephone number. ), and transmits telephone information to the LAN terminal 22 to display, for example, "Telephone call procedure in progress". When the calling telephone is a multifunction telephone equipped with a speaker and having an on-hook dialing function, the call processing means 142 sends a command to the telephone 21 to connect the speaker to the receiving circuit and turn on the speaker lamp. Next, the call processing means 142 executes a connection reservation (step S3) to connect the telephones specified by the calling telephone number and the called telephone number of the received telephone information, and sends a message to the LAN terminal 22, for example, "calling the other party". Please take your phone off.'' to take precautions against multi-function phones. Further, if the calling telephone has a single function and is not equipped with a speaker, it is necessary to use the telephone to hear the call in response to the called party, and the call processing means 142 monitors the off-hook state of the calling telephone 21. (Step S4). When the call processing means 142 detects the off-hook state of the calling telephone 21, it calls the called telephone 21 (step S5) and instructs it to transmit a calling signal. When the called party responds to the ringing signal, the call processing means 142 receives the response signal from the called telephone 21 (step S6), so it switches the communication path for both the calling and called parties (not shown). Control and connect (Step S
7) and end the procedure. If a multifunction telephone equipped with a speaker is the calling telephone, step S4 can be omitted.

Office processor 31 of LAN30 is LAN3
0, and the telephone number of the telephone 21 paired with this LAN terminal 22, and if conversion processing is possible, the caller can
By simply specifying a call connection request at the LAN terminal 22, the LAN terminal 22 can form and transmit a transmission packet containing the above-mentioned telephone information.

Further, when a caller places the telephone 21 in an off-hook state by raising the transmitter, the call processing means 142 identifies the call and sends the telephone number of the calling telephone and a request to display the telephone directory to the telephone. It is transmitted as information to the LAN terminal 22 paired with the calling telephone. Based on the telephone number of the calling telephone that received this telephone information, a pre-registered telephone directory is requested from the office processor 31 and displayed. When specified on the display screen of the LAN terminal using, for example, a cursor or a pen touch, the call processing means 142 performs the above-mentioned automatic calling with the specified telephone number or name as the called party.
You can request to. In this case, the operating procedure can be simplified by creating a program so that the specifications on the screen include a call connection request. Furthermore, the LAN terminal 22 automatically sends further detailed information about the called telephone number, such as affiliation and address, to the office processor 31.
If the caller is called and displayed, the information can be displayed on the LAN terminal 22 simply by operating the telephone 21, and an error in the operation of the called telephone number can be detected before the connected party responds.

In the above embodiment, an example of a packet configuration, a detailed functional block diagram, and an example of an operation procedure are illustrated and explained with reference to them, but the above description does not limit the present invention.

〔Effect of the invention〕

As explained above, according to the LAN terminal accommodation connection system of the present invention, the electronic exchange has one LAN connection circuit for each LAN, and communicates with the LAN terminal via a LAN separate from the telephone information telephone line. By configuring this configuration, a pair of LAN terminals and telephones can send and receive telephone information via an electronic exchange, which improves economic efficiency by eliminating the need for connection circuits and adapters for each terminal device, and improves economic efficiency between LAN terminals and electronic exchanges. Since information transmission between the two is done via a high-speed transmission line within the LAN, inefficient use of telephone lines can be avoided and the efficiency of use of the device can be improved.

[Brief explanation of drawings]

Figure 1 is a block diagram showing an embodiment of the LAN terminal accommodation/connection system of the present invention, and Figure 2 is the same as that of Figure 1.
A configuration diagram showing an example of a transmission packet configuration within a LAN,
3 is a functional block diagram showing an example of partial details of FIG. 1, FIG. 4 is a flowchart showing an example of the main operating procedure of the central processing unit shown in FIG. 1, and FIG. 5 is a block diagram showing an example of the conventional system. It is a diagram. 10...Electronic exchange, 11...Line circuit, 12
... LAN connection circuit, 13 ... Main storage device, 14
... Central processing unit, 20 ... Terminal device, 21 ...
Telephone, 22...LAN terminal, 30...LAN (local area network).

Claims (1)

[Claims] 1. LAN terminals and telephones connected to each of multiple local area networks (LAN) formed within a local area are housed in an electronic exchange as a set of terminal equipment.
In the LAN terminal accommodating connection method, the electronic exchange includes a line circuit that connects each of the telephones, a LAN connection circuit that connects and accommodates each LAN connected to the LAN terminal as one terminal, and this LAN connection circuit. and a central processing unit connected to the line circuit to exchange predetermined telephone information with the LAN terminal and execute information processing by making full use of programs and data stored in a main storage device. A LAN terminal accommodating connection method.